package com.tjtt.common.utils;

import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.Date;

/**
 *Create on 2008-9-2
 *Copyright (c) 2008 by tjtt.
 *@author <a href="mailto:royfu@163.com">  fudaikang </a> 
 *@version 1.0
 **/
public class HashDes {
	
	/*static final是表示了只读，切能在同一个进程空间内的多个 
    Instance间共享*/ 
	private static String strDefaultKey = "11111111";	//密码位数必须是8的整数倍
	public String digestHexStr; 
//28
	static final int pc_1_cp[]={
		57,49,41,33,25,17,9
		,1,58,50,42,34,26,18
		,10,2,59,51,43,35,27
		,19,11,3,60,52,44,36};
//28
	static final int pc_1_dp[]={
		63,55,47,39,31,23,15
		,7,62,54,46,38,30,22
		,14,6,61,53,45,37,29
		,21,13,5,28,20,12,4};
//48
	static final int pc_2p[]={
		14,17,11,24,1,5,
		3,28,15,6,21,10,
		23,19,12,4,26,8,
		16,7,27,20,13,2,
		41,52,31,37,47,55,
		30,40,51,45,33,48,
		44,49,39,56,34,53,
		46,42,50,36,29,32};
//16	
	static final int ls_countp[]={1,1,2,2,2,2,2,2,1,2,2,2,2,2,2,1};
//64	
	static final int iip_tab_p[]={
		58,50,42,34,26,18,10,2,
		60,52,44,36,28,20,12,4,
		62,54,46,38,30,22,14,6,
		64,56,48,40,32,24,16,8,
		57,49,41,33,25,17,9,1,
		59,51,43,35,27,19,11,3,
		61,53,45,37,29,21,13,5,
		63,55,47,39,31,23,15,7};
//64
	static final int _iip_tab_p[]={
		40,8,48,16,56,24,64,32,
		39,7,47,15,55,23,63,31,
		38,6,46,14,54,22,62,30,
		37,5,45,13,53,21,61,29,
		36,4,44,12,52,20,60,28,
		35,3,43,11,51,19,59,27,
		34,2,42,10,50,18,58,26,
		33,1,41,9,49,17,57,25};
//48
	static final int e_r_p[]={
		32,1,2,3,4,5,4,5,6,7,8,9,
		8,9,10,11,12,13,12,13,14,15,16,17,
		16,17,18,19,20,21,20,21,22,23,24,25,
		24,25,26,27,28,29,28,29,30,31,32,1};
//32
	static final int local_PP[]={
		16,7,20,21,29,12,28,17,
		1,15,23,26,5,18,31,10,
		2,8,24,14,32,27,3,9,
		19,13,30,6,22,11,4,25};
	//[8][4][16]
	static final int ccom_SSS_p[][][]={
		{{14,4,13,1,2,15,11,8,3,10,6,12,5,9,0,7},
		{0,15,7,4,14,2,13,1,10,6,12,11,9,5,3,8},
		{4,1,14,8,13,6,2,11,15,12,9,7,3,10,5,0},
		{15,12,8,2,4,9,1,7,5,11,3,14,10,0,6,13}},

		{{15,1,8,14,6,11,3,4,9,7,2,13,12,0,5,10},
		{3,13,4,7,15,2,8,14,12,0,1,10,6,9,11,5},
		{0,14,7,11,10,4,13,1,5,8,12,6,9,3,2,15},
		{13,8,10,1,3,15,4,2,11,6,7,12,0,5,14,9}},

		{{10,0,9,14,6,3,15,5,1,13,12,7,11,4,2,8},
		{13,7,0,9,3,4,6,10,2,8,5,14,12,11,15,1},
		{13,6,4,9,8,15,3,0,11,1,2,12,5,10,14,7},
		{1,10,13,0,6,9,8,7,4,15,14,3,11,5,2,12}},

		{{7,13,14,3,0,6,9,10,1,2,8,5,11,12,4,15},
		{13,8,11,5,6,15,0,3,4,7,2,12,1,10,14,9},
		{10,6,9,0,12,11,7,13,15,1,3,14,5,2,8,4},
		{3,15,0,6,10,1,13,8,9,4,5,11,12,7,2,14}}, /* err on */

		{{2,12,4,1,7,10,11,6,8,5,3,15,13,0,14,9},
		{14,11,2,12,4,7,13,1,5,0,15,10,3,9,8,6}, /* err on */
		{4,2,1,11,10,13,7,8,15,9,12,5,6,3,0,14},
		{11,8,12,7,1,14,2,13,6,15,0,9,10,4,5,3}},

		{{12,1,10,15,9,2,6,8,0,13,3,4,14,7,5,11},
		{10,15,4,2,7,12,9,5,6,1,13,14,0,11,3,8},
		{9,14,15,5,2,8,12,3,7,0,4,10,1,13,11,6},
		{4,3,2,12,9,5,15,10,11,14,1,7,6,0,8,13}},

		{{4,11,2,14,15,0,8,13,3,12,9,7,5,10,6,1},
		{13,0,11,7,4,9,1,10,14,3,5,12,2,15,8,6},
		{1,4,11,13,12,3,7,14,10,15,6,8,0,5,9,2},
		{6,11,13,8,1,4,10,7,9,5,0,15,14,2,3,12}},

		{{13,2,8,4,6,15,11,1,10,9,3,14,5,0,12,7},
		{1,15,13,8,10,3,7,4,12,5,6,11,0,14,9,2},
		{7,11,4,1,9,12,14,2,0,6,10,13,15,3,5,8},
		{2,1,14,7,4,10,8,13,15,12,9,0,3,5,6,11}}};
		
	byte[][] C=new byte[17][28];
	byte[][] D=new byte[17][28];
	byte[][] K=new byte[17][48];
//	public HashDes() { 
//		return; 
//	} 
	/*iu2b把int转换成byte
	*/ 
	private static byte iu2b ( int  input) { 
		byte output1;
		output1 = (byte)(input & 0xff); 
		return output1;
	} 

	/* 
	b2iu把byte按照不考虑正负号的原则的”升位”成int程序，
     因为java没有unsigned运算 
	*/ 
	private static int b2iu(byte b) { 
		return b < 0 ? b & 0x7F + 128 : b; 
	} 

	/*byteHEX()，用来把一个byte类型的数转换成十六进制的ASCII表示， 
   　因为java中的byte的toString无法实现这一点，我们又没有C语言中的 
   sprintf(outbuf,"%02X",ib) 
   */ 
	public static String byteHEX(byte ib) { 
		char[] Digit = { '0','1','2','3','4','5','6','7','8','9', 'A','B','C','D','E','F' }; 
		char[] ob = new char[2]; 
		ob[0] = Digit[(ib >>> 4) & 0X0F]; 
		ob[1] = Digit[ib & 0X0F]; 
		String s = new String(ob); 
		return s; 
	} 
	/* desMemcpy是一个内部使用的byte数组的块拷贝函数，
    从input的inpos开始把len长度的 
    字节拷贝到output的outpos位置开始 
*/ 
	private void desMemcpy (byte[] output, byte[] input, 	int outpos, int inpos, int len) { 
		int i; 
		for (i = 0; i < len; i++) 
			output[outpos + i] = input[inpos + i]; 
	} 
	private void Fexpand0(byte[] in,byte[] out) {
		int divide;
		int i,j;
		byte temp1;

		for (i=0;i<8;i++)
		{
			divide=7;
			for (j=0;j<8;j++)
			{
				temp1=in[i];
				out[8*i+j]=iu2b((b2iu(temp1)>>>divide)&1);
				divide--;
			}
		}
	}
	private void FLS(byte[] bits,byte[] buffer,int count) {
		int i;
		for (i=0;i<28;i++)
		{
			buffer[i]=bits[(i+count)%28];
		}
	}
	private void Fson(byte[] cc,byte[] dd,byte[] kk) {
		int i;
		byte[] buffer=new byte[56];
		for (i=0;i<28;i++)
			buffer[i]=cc[i];

		for (i=28;i<56;i++)
			buffer[i]=dd[i-28];

		for (i=0;i<48;i++)
			kk[i]=buffer[pc_2p[i]-1];
	}
	private void Fsetkeystar(byte[] bits) {
		int i,j;

		for (i=0;i<28;i++)
			C[0][i]=bits[pc_1_cp[i]-1];
		for (i=0;i<28;i++)
			D[0][i]=bits[pc_1_dp[i]-1];
		for (j=0;j<16;j++)
		{
			FLS(C[j],C[j+1],ls_countp[j]);
			FLS(D[j],D[j+1],ls_countp[j]);
			Fson(C[j+1],D[j+1],K[j+1]);
		}
	}
	private void Fiip(byte[] text,byte[] ll,byte[] rr) {
		int i;
		byte[] buffer=new byte[64];
		Fexpand0(text,buffer);

		for (i=0;i<32;i++)
			ll[i]=buffer[iip_tab_p[i]-1];

		for (i=0;i<32;i++)
			rr[i]=buffer[iip_tab_p[i+32]-1];
	}
	private void Fs_box(byte[] aa,byte[] bb) {
		int i,j,k,m;
		int y,z;
		byte[]  ss=new byte[8];
		m=0;
		for (i=0;i<8;i++)
		{
			j=6*i;
			y=b2iu(aa[j])*2+b2iu(aa[j+5]);
			z=b2iu(aa[j+1])*8+b2iu(aa[j+2])*4+b2iu(aa[j+3])*2+b2iu(aa[j+4]);
			ss[i]=iu2b(ccom_SSS_p[i][y][z]);
			y=3;
			for (k=0;k<4;k++)
			{
				bb[m++]=iu2b((b2iu(ss[i])>>>y)&1);
				y--;
			}

		}
	}
	private void FF(int n,byte[] ll,byte[] rr,byte[] LL,byte[] RR) {
		int i;
		byte[] buffer=new byte[64],tmp=new byte[64];
		for (i=0;i<48;i++)
			buffer[i]=rr[e_r_p[i]-1];
		for (i=0;i<48;i++)
			buffer[i]=iu2b((b2iu(buffer[i])+b2iu(K[n][i]))&1);

		Fs_box(buffer,tmp);

		for (i=0;i<32;i++)
			buffer[i]=tmp[local_PP[i]-1];

		for (i=0;i<32;i++)
			RR[i]=iu2b((b2iu(buffer[i])+b2iu(ll[i]))&1);

		for (i=0;i<32;i++)
			LL[i]=rr[i];
	}
	private void _Fiip(byte[] text,byte[] ll,byte[] rr) {
		int i;
		byte[] tmp=new byte[64];
		for (i=0;i<32;i++)
			tmp[i]=ll[i];
		for (i=32;i<64;i++)
			tmp[i]=rr[i-32];
		for (i=0;i<64;i++)
			text[i]=tmp[_iip_tab_p[i]-1];
	}
	@SuppressWarnings("unused")
	private void Fcompress016(byte[] out,byte[] in) {
		int times;
		int i,j;

		for (i=0;i<16;i++)
		{
			times=3;
			in[i]='0';
			for (j=0;j<4;j++)
			{
				in[i]=iu2b(b2iu(in[i])+(b2iu(out[i*16+j])<<times));
				times--;
			}
		}
	}
	void Fcompress0(byte[] out,byte[] in) {
		int times;
		int i,j;

		for (i=0;i<8;i++)
		{
			times=7;
			in[i]=0;
			for (j=0;j<8;j++)
			{
				in[i]=iu2b(b2iu(in[i])+(b2iu(out[i*8+j])<<times));
				times--;
			}
		}
	}
	private void Fencrypt0(byte[] text,byte[] mtext) {
		byte[]  ll=new byte[64],rr=new byte[64],LL=new byte[64],RR=new byte[64];
		byte[]  tmp=new byte[64];
		int i,j;
		Fiip(text,ll,rr);

		for (i=1;i<17;i++)
		{
			FF(i,ll,rr,LL,RR);
			for (j=0;j<32;j++)
			{
				ll[j]=LL[j];
				rr[j]=RR[j];
			}
		}

		_Fiip(tmp,rr,ll);

		Fcompress0(tmp,mtext);
	}
	private void FDES(byte[] key,byte[] text,byte[] mtext) {
		byte[] tmp=new byte[64];
		Fexpand0(key,tmp);
		Fsetkeystar(tmp);
		Fencrypt0(text,mtext);
	}

	 /*加密*/
	 public int ENCRYPT(byte[] key, byte[] s,byte[] d,int len ) {
         int i,j;
         byte[] cData=new byte[8];
         byte[] cEncryptData=new byte[8];
         for (i=0;i<len;i+=8) {
               if ((i+8)>len) {
                     desMemcpy(cData,s,0,i,len-i);
                     for (j = len-i; j < 8; j++) 
                           cData[j] = 0; 
               } else
                     desMemcpy(cData,s,0,i,8);
               FDES(key,cData,cEncryptData);
               desMemcpy(d,cEncryptData,i,0,8);

         }
         return i;
   }
	private void Fdiscrypt0(byte[] mtext,byte[] text) {
		byte[]  ll=new byte[64],rr=new byte[64],LL=new byte[64],RR=new byte[64];
		byte[]  tmp=new byte[64];
		int i,j;
		Fiip(mtext,ll,rr);

		for (i=16;i>0;i--)
		{
			FF(i,ll,rr,LL,RR);
			for (j=0;j<32;j++)
			{
				ll[j]=LL[j];
				rr[j]=RR[j];
			}
		}

		_Fiip(tmp,rr,ll);

		Fcompress0(tmp,text);
	}
	/*****************************************************************************
	* function:	DES
	* parameter:	u_char * key	; key for encrypt
	*		u_char * mtext	; encipher data 
	*		u_char * text	; plain data
	* return:	none
	*****************************************************************************/
	private void _FDES(byte[] key,byte[] mtext,byte[] text) {
		byte[] tmp=new byte[64];
		Fexpand0(key,tmp);
		Fsetkeystar(tmp);
		Fdiscrypt0(mtext,text);
	}
	/*解密*/
    public int DECRYPT(byte[] key, byte[] s,byte[] d,int len ) {
        int i;
        byte[] cData=new byte[8];
        byte[] cEncryptData=new byte[8];
        for(i=0;i<len;i+=8) {
              desMemcpy(cEncryptData,d,0,i,8);
              _FDES(key,cEncryptData,cData);
              desMemcpy(s,cData,i,0,8);
        }
        return i;
  }
	public static byte[] hexStr2ByteArr(String strIn)  {
		byte[] arrB = strIn.getBytes();
		int iLen = arrB.length;

//		两个字符表示一个字节，所以字节数组长度是字符串长度除以2
		byte[] arrOut = new byte[iLen / 2];
		for (int i = 0; i < iLen; i = i + 2) {
			String strTmp = new String(arrB, i, 2);
			arrOut[i / 2] = (byte) Integer.parseInt(strTmp, 16);
		}
		return arrOut;
	}
	
	/*文件加密*/
	public void fileDesENCRYPT(String key,String inpath,String outpath) throws IOException{
		int i1;
		byte[] byte2=new byte[102400];
		InputStream inFile = null;
		try {
			inFile = new FileInputStream(inpath);
			OutputStream outFile = new FileOutputStream(outpath);
			byte[] buffer = new byte[102400];
			int r;
			while ((r = inFile.read(buffer)) > 0) {
				i1=ENCRYPT(key.getBytes(),buffer,byte2,r);
				outFile.write(byte2, 0, i1);
			}
		} catch (FileNotFoundException e) {
			e.printStackTrace();
		}catch (IOException e) {
			e.printStackTrace();
		}finally{
			try {
			inFile.close();
			}catch(FileNotFoundException e) {
				e.printStackTrace();
			}
		}
	}
	/*文件解密*/
	public void fileDesDECRYPT(String key,String inpath,String outpath){
		int i2;
		byte[] byteMingW=new byte[102400];  

		try {
			InputStream inFile = new FileInputStream(inpath);
			OutputStream outFile = new FileOutputStream(outpath);
			byte[] buffer = new byte[102400];
			int r;
			while ((r = inFile.read(buffer)) > 0) {
				i2=DECRYPT(key.getBytes(),byteMingW,buffer,r);
				outFile.write(byteMingW, 0,i2);
			}
		} catch (FileNotFoundException e) {
			e.printStackTrace();
		}catch (IOException e) {
			e.printStackTrace();
		}
	}
	
	/*字符加密*/
	public String strDesENCRYPT(String key,String str){
		int i1;
		byte[] byte2=new byte[3000];
		byte[] byte1=str.getBytes(); 
		String skey = key;
		i1=ENCRYPT(skey.getBytes(),byte1,byte2,byte1.length);
		String digestHexStr = ""; 
		for (int i = 0; i < i1; i++) { 
			digestHexStr += byteHEX(byte2[i]); 
		} 
		return digestHexStr;
	}

	/*字符解密*/
	public String strDesDECRYPT(String key,String str){
		int i2;
		byte[] byteMingW=new byte[3000];  
		byte[] byteMiW=new byte[3000];
		byteMiW=hexStr2ByteArr(str);
		String skey = key;
		i2=DECRYPT(skey.getBytes(),byteMingW,byteMiW,byteMiW.length);
		return new String(byteMingW,0,i2).trim();
	}
	
	
	
	@SuppressWarnings("static-access")
	public static void main(String args[]) throws IOException {
		HashDes m = new HashDes(); 
		long starttime = new Date().getTime();
		m.fileDesENCRYPT(m.strDefaultKey, "c:\\CoD4MW-1.4-PatchSetup.exe", "c:\\CoD4MW-1.4-PatchSetup1.exe");
		System.out.println(new Date().getTime() - starttime);
//		
//		m.fileDesDECRYPT(m.strDefaultKey, "c:\\test.rar", "c:\\test1.rar");
		
//		String strmi = m.strDesENCRYPT(m.strDefaultKey," 中文d");
//		String strmi = m.strDesENCRYPT(m.strDefaultKey, " SDFSDCVDFGFDFGDRGTRGTR:20081111014109");
//		System.out.println(strmi);
//		
//		String strjie = m.strDesDECRYPT(m.strDefaultKey, strmi);
//		System.out.println(strjie);
		
	} 

}
